What is the difference between + and .+ explain with example. Suppose i am adding two matrices which is best and what are their roles.

a = [2,3;5,6]

b = [2,5;6,9]

c = a + b

d = a .+ b

[Stephen23]

"What is the difference between + and .+ explain with example."

The difference is very simple:

• + is a MATLAB operator (shorthand for the PLUS function),
• .+ does not exist.

"Suppose i am adding two matrices which is best and what are their roles."

Using the operator that actually exists is more likely to succeed.

Answer 1

[Star Strider]

Theree is no ‘.+’ (or ‘.-’) operator. (Using them would throw an error.) The dot operator with multiplication (‘.*’), division (‘./’), and exponentiation (‘.^’) are element-wise (array) operators, as opposed to matrix operators. Seee the documentation section on Array vs. Matrix Operations for details. Addition and subtraction are always element-wise operations.